diff --git a/.github/workflows/build.yaml b/.github/workflows/build.yaml
index 0791159..0a01eef 100644
--- a/.github/workflows/build.yaml
+++ b/.github/workflows/build.yaml
@@ -17,7 +17,7 @@ jobs:
       - name: Install Rust
         uses: actions-rs/toolchain@v1
         with:
-          toolchain: 1.48.0
+          toolchain: 1.49.0
           components: clippy, rustfmt
           default: true
       - name: Install dependencies
diff --git a/README.md b/README.md
index 37c07bd..321acb4 100644
--- a/README.md
+++ b/README.md
@@ -66,7 +66,7 @@ from [GitHub Actions](https://actions-badge.atrox.dev/iceiix/stevenarella/goto?r
 
 ## Dependencies
 
-Requires Rust stable version 1.48.0 or newer.
+Requires Rust stable version 1.49.0 or newer.
 
 **Debian/Ubuntu**
 
diff --git a/protocol/src/format.rs b/protocol/src/format.rs
index 0b470ff..bfa0887 100644
--- a/protocol/src/format.rs
+++ b/protocol/src/format.rs
@@ -323,8 +323,8 @@ pub fn convert_legacy(c: &mut Component) {
                             current.text = txt.text[last..i].to_owned();
                             last = next.0 + 1;
 
-                            let mut modifier = if (color_char >= 'a' && color_char <= 'f')
-                                || (color_char >= '0' && color_char <= '9')
+                            let mut modifier = if ('a'..='f').contains(&color_char)
+                                || ('0'..='9').contains(&color_char)
                             {
                                 Default::default()
                             } else {
diff --git a/src/chunk_builder.rs b/src/chunk_builder.rs
index 5bdd915..cc63af9 100644
--- a/src/chunk_builder.rs
+++ b/src/chunk_builder.rs
@@ -302,7 +302,11 @@ fn flood_fill(snapshot: &world::Snapshot, visited: &mut Set, x: i32, y: i32, z:
     let mut touched = 0;
     while let Some((x, y, z)) = next_position.pop_front() {
         let idx = (x | (z << 4) | (y << 8)) as usize;
-        if x < 0 || x > 15 || y < 0 || y > 15 || z < 0 || z > 15 || visited.get(idx) {
+        if !(0..=15).contains(&x)
+            || !(0..=15).contains(&y)
+            || !(0..=15).contains(&z)
+            || visited.get(idx)
+        {
             continue;
         }
         visited.set(idx, true);
diff --git a/src/entity/systems.rs b/src/entity/systems.rs
index 73c75c9..922de11 100644
--- a/src/entity/systems.rs
+++ b/src/entity/systems.rs
@@ -151,7 +151,7 @@ impl ecs::System for LerpPosition {
             pos.position = pos.position
                 + (target_pos.position - pos.position) * delta * target_pos.lerp_amount;
             let len = (pos.position - target_pos.position).magnitude2();
-            if len < 0.001 || len > 100.0 * 100.0 {
+            if !(0.001..=100.0 * 100.0).contains(&len) {
                 pos.position = target_pos.position;
             }
         }
diff --git a/src/world/mod.rs b/src/world/mod.rs
index bb3cdbc..a4ad809 100644
--- a/src/world/mod.rs
+++ b/src/world/mod.rs
@@ -430,7 +430,7 @@ impl World {
         y: i32,
         z: i32,
     ) -> Option<(Option<&mut Section>, &mut u32)> {
-        if y < 0 || y > 15 {
+        if !(0..=15).contains(&y) {
             return None;
         }
         if let Some(chunk) = self.chunks.get_mut(&CPos(x, z)) {
@@ -540,7 +540,7 @@ impl World {
                 let z2 = min(16, max(0, z + d - (cz << 4)));
 
                 for cy in cy1..cy2 {
-                    if cy < 0 || cy > 15 {
+                    if !(0..=15).contains(&cy) {
                         continue;
                     }
                     let section = &chunk.sections[cy as usize];
@@ -1124,7 +1124,7 @@ impl World {
     }
 
     fn flag_section_dirty(&mut self, x: i32, y: i32, z: i32) {
-        if y < 0 || y > 15 {
+        if !(0..=15).contains(&y) {
             return;
         }
         let cpos = CPos(x, z);
@@ -1255,7 +1255,7 @@ impl Chunk {
 
     fn set_block(&mut self, x: i32, y: i32, z: i32, b: block::Block) -> bool {
         let s_idx = y >> 4;
-        if s_idx < 0 || s_idx > 15 {
+        if !(0..=15).contains(&s_idx) {
             return false;
         }
         let s_idx = s_idx as usize;
@@ -1297,7 +1297,7 @@ impl Chunk {
 
     fn get_block(&self, x: i32, y: i32, z: i32) -> block::Block {
         let s_idx = y >> 4;
-        if s_idx < 0 || s_idx > 15 {
+        if !(0..=15).contains(&s_idx) {
             return block::Missing {};
         }
         match self.sections[s_idx as usize].as_ref() {
@@ -1308,7 +1308,7 @@ impl Chunk {
 
     fn get_block_light(&self, x: i32, y: i32, z: i32) -> u8 {
         let s_idx = y >> 4;
-        if s_idx < 0 || s_idx > 15 {
+        if !(0..=15).contains(&s_idx) {
             return 0;
         }
         match self.sections[s_idx as usize].as_ref() {
@@ -1319,7 +1319,7 @@ impl Chunk {
 
     fn set_block_light(&mut self, x: i32, y: i32, z: i32, light: u8) {
         let s_idx = y >> 4;
-        if s_idx < 0 || s_idx > 15 {
+        if !(0..=15).contains(&s_idx) {
             return;
         }
         let s_idx = s_idx as usize;
@@ -1337,7 +1337,7 @@ impl Chunk {
 
     fn get_sky_light(&self, x: i32, y: i32, z: i32) -> u8 {
         let s_idx = y >> 4;
-        if s_idx < 0 || s_idx > 15 {
+        if !(0..=15).contains(&s_idx) {
             return 15;
         }
         match self.sections[s_idx as usize].as_ref() {
@@ -1348,7 +1348,7 @@ impl Chunk {
 
     fn set_sky_light(&mut self, x: i32, y: i32, z: i32, light: u8) {
         let s_idx = y >> 4;
-        if s_idx < 0 || s_idx > 15 {
+        if !(0..=15).contains(&s_idx) {
             return;
         }
         let s_idx = s_idx as usize;